The model shows the edge of the CME hitting us rather than the denser centre of it.

Quoting: madajs

Thank you for that Madajs Brol' - (Sol Bro')

Do you know which CME this is so I can see it on Cactus?

With regard it not being Dead-Center...I think this can possibly mean that the received Polarity of the CME may be more of just One Polarity when it arrives at Earth,my thinking for this is that I'd expect the further along you get to each outside edge of the Ejecta the more likely it may be that the Polarity will be more of One concentration than the very Center of the Ejecta(This is just my own thoughts,not to be taken as the fact of the matter)and my reasoning is this - In my minds' eye I imagine that the more Central regions of a CME,though generally Denser will involve the toing and froing of the Ejecta's Polarities as they juggle themselves from One end to the other trying to find a more stable 'resting place' with relation to the IMF medium.(Excuse the disjointed manner of the Above ^ ^ )

This may actually not be correct,but I'd expect a process similar to the One I(try)to explain Above in the dynamics of a CME as it travels through the Heliosphere